Home / 145,164.91-200,327.58-81,504.08

Finding the Fourth Proportional to 145,164.91, 200,327.58 and 81,504.08

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Solution

The fourth proportional to 145,164.91, 200,327.58 and 81,504.08 is: 112,475.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,164.91 : 200,327.58 = 81,504.08 : x
  2. Step 2: Convert to fraction form
    145,164.91/200,327.58 = 81,504.08/x
  3. Step 3: Cross multiply
    145,164.91x = 200,327.58 × 81,504.08
  4. Step 4: Simplify right side
    145,164.91x = 16,327,513,697.37
  5. Step 5: Solve for x
    x = 16,327,513,697.37/145,164.91
  6. Step 6: Final answer
    x = 112,475.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.